Accuracy and Precision of a Novel Photogate System to Measure Toe Clearance on Stairs.

ABSTRACT: Background: Toe clearance on stairs is typically measured using optoelectronic systems, though these are often constrained to the laboratory, due to their complex setups. Here we measured stair toe clearance through a novel prototype photogate setup and compared this to optoelectronic measurements. Methods: Twelve participants (age 22 ± 3 years) completed 25 stair ascent trials, each on a seven-step staircase. Toe clearance over the fifth step edge was measured using Vicon and the photogates. Twenty-two photogates were created in rows through laser diodes and phototransistors. The height of the lowest photogate broken at step-edge crossing was used to determine photogate toe clearance. A limits of agreement analysis and Pearson's correlation coefficient compared the accuracy,

SUBMITTER: Skervin TK 

PROVIDER: S-EPMC10007576 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature